Watch live as the New York Police Department and New York City's mayor Bill de Blasio give an update on the fatal incident in Lower Manhattan.

Truck plows into bike riders in NYC

In this photo provided by the New York City Police Department, officers respond to a report of gunfire along West Street near the pedestrian bridge at Stuyvesant High School in lower Manhattan in New York on Oct. 31, 2017.

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In this photo provided by the New York City Police Department, officers respond to a report of gunfire along West Street near the pedestrian bridge at Stuyvesant High School in lower Manhattan in New York on Oct. 31, 2017.

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NEW YORK, NY - OCTOBER 31: Emergency personal respond after reports of multiple people hit by a truck after it plowed through a bike path in lower Manhattan on October 31, 2017 in New York City. According to reports up to six people may have been killed. (Photo by Kena Betancur/Getty Images)